Portion of a full face mask



FIG. 1 is an isometric view of a full-face mask according to a firstembodiment having a three-hole vent and a low profile connector; and,

FIG. 2 is an isometric view of a full-face mask according to a secondembodiment having a three-hole vent and a high-profile connector.

The broken line showing in the FIGS. 1 and 2 are for illustrativepurposes only and forms no part of the claimed design.

The ornamental design for a portion of a full face mask, as shown anddescribed.